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Old 27th May 2007, 09:55 PM   #1581
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Default Those Aussies are great!....no exception.... i love that people!


Greg Erskine work is wonderfull....the perfection in details....the care he had with each trace.

Congratulations dear Greg!

I am very proud to deserve your friendship.

I am also learning, a lot, because of you.

regards,

Carlos
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Old 27th May 2007, 10:17 PM   #1582
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Default One more image...... just this one more


I cannot dennie that i am happy as a morning bird.

It is pretty...and made with junk parts, old parts sanded to fit inside small modern holes ..... they are smaller in diameter.

And the image is performing fine in big close ups....hummmm....nice!

regards,

Carlos
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Old 28th May 2007, 12:03 PM   #1583
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Default Zobel wire and VBe wires soldered under the board.


Also the off set control can be seen in the attached image.

The orange wire is connected to ground...it comes from the zobel filter.

Red and brown wires are VBE multiplier wires...the red one is colector and the brown one is emitter.

regards,

Carlos
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File Type: jpg zobel and vbe wires.jpg (85.4 KB, 367 views)
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Old 28th May 2007, 12:27 PM   #1584
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Default Oh!...no one is able to make Greeks and Trojans satisfied.


Yeah!....someone had complained that VBe multiplier is complicated to be outside the board.

The transistors must be outside to work fine...at least under the board to some difficult crazy construction.....or some wire will have to travel from the board to the transistor that have to touch heatsink or output transistors!

The remotion was the base to colector and base to emitter resistances only...and can be installed hidden, without wires travelling over the board (sorry, but it is not pretty those wires travelling over).

Big fat Charlie is addicted to make "everybody happy"...but it is an enormous challenge.... Greeks, Trojans and some Spartans wants different things.

Grumpf.....grrrrr.....Nah!

regards,

Carlos
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Old 29th May 2007, 11:54 AM   #1585
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nice progress Carlos....
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Old 29th May 2007, 12:40 PM   #1586
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Default Thank you Sparkle...we are working hard


And now, many folks have already constructed, tested, and aproved.

Nordic is shacking his bonds today...poor Nordic...he will face dental sourgery tomorrow.

I hope everything runs fine with him...and also related your enterprises too.

Graham congratulated me yesterday too.....well.... congratulations returned to him also...as he gave technical and psychological support.

Also you used to help me a lot...thank you Sparkle.

regards,

Carlos
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Old 29th May 2007, 03:48 PM   #1587
kvholio is offline kvholio  Netherlands
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Congratulations on the arrival of your pcb's, Carlos !
Greg did a lovely job designing them
They sure took their time to cross the ocean, these things remind us how big the world is.
Sometimes talking on the internet makes us think the world is a small village,
delivery by mail sometimes shows us how big it really is.

I like the look of your pcb's, they look much less cluttered using more normal-sized caps.
Compared to yours the ones i'm using look like refrigerator-sized !
Also soldering the vbe-multiplier on the copper-side of the pcb is very smart,
you can simply attach the small pcb to any conducting surface.

I haven't done much to the DX lately, being happy with it the way it is.
I tried changing the small mkt input-caps to big Mundorf mkp (8.2 uF), i must say the difference i perceived is very, very small.
Some very slight improvement in bass and highs, but the difference is really too small to be sure.

The modification of the resistors in the powersupply-rails will be next on my list, i'm curious about what this will bring.

Best regards,

Klaas
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Old 29th May 2007, 04:46 PM   #1588
Nordic is offline Nordic  South Africa
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I have had so little sleep these last two nights, they wont even need anaesthetics, they can just play soft music, and I'll go to sleep...

Thanks for the positive thoughts.... today is my birthday, and I can't even have cake because of the surgery tommorrow....

Hold thumbs for me, I'll probably come and type some stuff on drugs if I survive the surgery...
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Old 29th May 2007, 05:22 PM   #1589
kvholio is offline kvholio  Netherlands
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Happy birthday anyway Nordic
(since you can't have the real thing)

keeping my fingers crossed for you tomorrow.

Remember Carlos' advice of taking the pain-killers BEFORE the pain. It really works !

Try to think of "two weeks from now, it will be a memory ", not about tomorrow.

Best regards,

Klaas
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Old 29th May 2007, 05:24 PM   #1590
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Default Thank you Klaas...good to have my pioneer back again.


I know you are busy with your work that is in the peak of production those days.

But i miss you presence, as you have already nice things to show and good comments here.....this thread value is supported by people alike you; Nordic, Greg and others that have constructed.

You thougths, during testings and modifications, are interesting to us...i will love to listen your conclusions during experiences with capacitors, values, and other modifications alike output transistors.

regards,

Carlos.

.................................................. .................................................. ............

Happy birthday dear Nordic.

I hope you will feel yourself happy because you are advancing related a lot of things you intended to make.... many amplifiers made, as i could see many things published in our forum.

Also you have courage to face the dentist...and i will be with you in my mind since early morning, as we have difference in time.... i will be with you... sending positive energies...sending courage and calm to you.

Relax...everything will gonna be all rigth Nordic.

regards,

Carlos
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